Alpha 1 & Generation 2 outdrive parts or drawings

T.C.Electronics / Marine

Mercruiser Alpha 1 Gear sets for upper-lower unit

Gear Sets / Sliding Clutch Dog - Upper/Lower Unit

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V8 43-18410A4 11210 18-2201
V8 43-18410A4 11210 18-2201
Gear set outdrive 1998 up 43-853641A2 11214 18-6351
Gear set outdrive 1998 up 43-853641A2 11214 18-6351

P/N 11210 - V8 set - replaces OEM 43-18411A2, Sierra 18-2201 $265.00
(Includes driven bearing OEM 31-32573A1)
1.50 ratio 20/22 (serial numbers 3106717 - 0K999999) years 1970 - 1997.

P/N 11214 - V8 set - replaces OEM 43-853641A2, Sierra 18-6351 $245.00
(Includes driven bearing # 31-32573A1) 1.47 ratio 20/22
(serial numbers 0L000040 and up) years 1998 and up.

1.98-1.94 4 cylinder 20-24 43-55778A3 11240
1.98-1.94 4 cylinder 20-24 43-55778A3 11240
94 2.4 upper 4 cylinder 43-853642A2 11244 18-6352
94 2.4 upper 4 cylinder 43-853642A2 11244 18-6352

P/N 11240 - 4 cylinder gears - replaces OEM 43-5578A3 $199.00
1.98 or 1.94 ratio 20/24 (serial number 2791957 - 0K999999) years 1970 - 1997

P/N 11244 - 4 cylinder gears - replaces OEM 43-853621A2, Sierra 18-6352 $229.00
1.94 or 2.4 ratio 20/24 (serial numbers 0L000040 and up) 1998 and up.

1.84 / 1.81 V6 470-485 43-75325A3 11230
1.84 / 1.81 V6 470-485 43-75325A3 11230
1.81 17-19 V6 43-853643A2 11233 18-6353
1.81 17-19 V6 43-853643A2 11233 18-6353

P/N 11230 - V6 set - replaces OEM 43-75325A3 $206.00
1.84 or 1.81 ratio 17/19 (serial number 4208730 - 0K999999) years 1976 - 1997

P/N 11233 - V6 set - replaces OEM 43-853643A2, Sierra 18-6353 $245.00
1.47 ratio 20/22 (serial numbers 0L000040 and up) years 1998 and up.

1.65 / 1.62 inline 6 43-45814A5 11220
1.65 / 1.62 inline 6 43-45814A5 11220
1.62-2.0 24/24 6 cylinder 43-853640A2 11222 18-6350
1.62-2.0 24/24 6 cylinder 43-853640A2 11222 18-6350

P/N 11220 - Inline 6 cylinder set - replaces OEM 43-45814A5 $199.00
1.65 or 1.62 ratio 24/24 (serial number 2766442 - 0K999999) years 1970 - 1997.

P/N 11222 - Inline 6 cylinder set - replaces OEM 43-853640A2, Sierra 18-6350 $246.00
1.62 or 2.0 ratio 24/24 (serial numbers 0L000040 and up) years 1998 and up.

LOWER

Clutch dog lower unit 52-853594T 11060
Clutch dog lower unit 52-853594T 11060
Forward pinion 43-828072A2 11091
Forward pinion 43-828072A2 11091

P/N 11060 - Clutch dog - replaces OEM 52-853594T $129.00
Compatible with all lower units - Mercruiser / Alpha 1 / Gen 2 (1972 and up) (except 2.40 ratio, Bravo and TRS models)

P/N 11091 - Lower unit pinion / forward gear with forward bearing OEM 31-35928T1 $299.00
13/21 ratio (serial numbers 6225577 and up) - compatible with all 1984 years and up models except 2.40 ratio, Bravo and TRS models

Alpha 1 lower unit complete bearings-seals and shim kit for above.